<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        /* 有序的ol li */
        ol {
            list-style: none;
        }

        ol>li {
            margin-top: 20px;
            font-size: large;
        }
        ul>li{
            margin-left: 110px;
            margin-top: 20px;
           color: greenyellow;
        }
    </style>
</head>

<body>
    <ol>
        <li>aaa</li>
        <li>bbb</li>
        <li>ccc</li>
    </ol>
    <ul>
        <li>a</li>
        <li>b</li>
        <li>c</li>
    </ul>

</body>

</html>